作者: K. Miyano
DOI: 10.1063/1.436508
关键词: Molecular physics 、 Chemistry 、 Raman spectroscopy 、 Crystallography 、 Liquid crystal 、 Tensor 、 Molecule 、 Excited state 、 Spectral line 、 Raman scattering 、 Depolarization
摘要: The depolarization ratios of the Raman vibrational bands from terminal C≡N and central C–C biphenyl link an oriented nematic liquid crystal [p‐n‐pentyl‐p′‐cyanobiphenyl (5CB)] have been measured. orientational order parameters 〈P2〉 〈P4〉 were calculated. parameter remained far less than mean‐field theory prediction although a systematic discrepancy between obtained two was noted. tensor band found not to be uniaxial, contrary previous assumption, strong association molecules is suggested. Problems associated with this technique are discussed.